It's GOOD

Design studio Urban-Think Tank has actually built a 4,000-square-meter prefab vertical gym in a slum of Caracas, Venezuela, that houses all of those elements. The four-floor gym has the dimensions of a basketball court, and it has already proven its worthiness: after it opened in 2004, crime in the surrounding neighborhood dropped 30%. The gym is programmed 24/7, with everything from dance therapy classes to chess tournaments.